Been looking for some data on the efficacy of these simple masks that are being mandated but have not seen any until now. After reviewing it I understand why. (https://mises.org/wire/theres-....still-no-evidence-ei
Been looking for some data on the efficacy of these simple masks that are being mandated but have not seen any until now. After reviewing it I understand why. (https://mises.org/wire/theres-....still-no-evidence-ei
